12-05-2014 09:54 AM
Sorry, forgot to attach the vi. Here it is!
01-24-2024 02:32 PM
Hi, did you ever figure this out? I am having same issue with an NI 9181 trying to read an IEPE accelerometer. Dropping it from an inch also results in almost a 100g.
01-24-2024 03:48 PM
You are replying to a thread over 9 years old. It is unlikely the original poster will reply as the above post was the last one they ever made.
I suggest you make a new post including:
01-24-2024 06:10 PM
@qusaimn wrote:
Hi, did you ever figure this out? I am having same issue with an NI 9181 trying to read an IEPE accelerometer. Dropping it from an inch also results in almost a 100g.
Probably not a good way to test. A large shock can ruin an accelerometer's calibration.
01-25-2024 07:19 AM
I don't see anything particularly unreasonable about the reading, although I agree it's not a very good test.
01-25-2024 07:23 AM - edited 01-25-2024 07:29 AM
Nope , chance is high to break it .. unless it's build to survive such shocks.
Depending on hight and surface hardness (and mass ratio) no problem to create extrem accelerations ..
v_down = -v_up = v , a ~ 2*v/t with t the time the sensor touch the ground ... could be very short
(classic: Sensor with long fixed mounted cable. After stripping the setup the cable and sensor are lying on the concrete floor and the (st)ripper coils the cable beginning at the connector while the accelerometer is bouncing over the concrete floor 😮 )
Another chance: a short time loose contact during the shock results in a voltage peak with a IEPE sensor.
01-26-2024 04:09 PM
Hello,
Thank you for the response. I am very new to accelerometers, so I appreciate the guidance. I did make a new post explaining my problem and attached snapshots showing my set up. If someone can guide me I would appreciate it greatly!
Here is a link to my post: